(* Copyright (C) 2020 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.

This file is part of GNU Modula-2.

GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Modula-2; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  *)

MODULE badshift ;

(* bad expression containing a legal shift.  *)

FROM SYSTEM IMPORT ADR, ADDRESS, SHIFT ;

VAR
   s: SET OF [0..15] ;
   c: CHAR ;
BEGIN
   (* should generate a subexpression error with the call to SHIFT.  *)
   s := SHIFT (s, 1) + c
END badshift.